CN211951905U - Compound direct-burried insulating tube of enhancement mode - Google Patents
Compound direct-burried insulating tube of enhancement mode Download PDFInfo
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- CN211951905U CN211951905U CN202020476605.9U CN202020476605U CN211951905U CN 211951905 U CN211951905 U CN 211951905U CN 202020476605 U CN202020476605 U CN 202020476605U CN 211951905 U CN211951905 U CN 211951905U
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- heat preservation
- gear
- pipe
- polyurethane heat
- polyurethane
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Abstract
The utility model discloses a compound buried heat preservation pipe of enhancement mode, including inner tube, outer tube, polyurethane heat preservation, oversheath and a plurality of linking bridge, be provided with first gear and second gear on the outer wall of inner tube and the inner wall of outer tube respectively, the polyurethane heat preservation is filled between inner tube and outer tube. The utility model discloses the joint strength and the positional stability of well polyurethane heat preservation obtain promoting, have solved the polyurethane heat preservation and have appeared not hard up, the problem of aversion easily in the heat preservation to guarantee the result of use of polyurethane heat preservation, prolonged the life of polyurethane heat preservation.
Description
Technical Field
The utility model belongs to the technical field of the insulating tube, concretely relates to compound direct-burried insulating tube of enhancement mode.
Background
Present compound direct-burried insulating tube includes the inner tube, the outer tube, the heat preservation, oversheath and linking bridge, wherein the heat preservation is located between inner tube and the outer tube, it is the polyurethane heat preservation to compare commonly used, the formation of polyurethane heat preservation is to pour into the polyurethane into between filling inner tube and the outer tube, form the polyurethane heat preservation after the cooling process again, the defect that this kind of compound direct-burried insulating tube exists is that the joint strength of polyurethane heat preservation between inner tube and outer tube is lower, it is not hard up to have appeared easily for a long time the polyurethane heat preservation, the condition such as aversion, lead to producing the space between polyurethane heat preservation and inner tube and the outer tube, and the space is probably bigger and bigger, outside air and rainwater probably enter into the polyurethane heat preservation like, destroy the heat preservation effect of polyurethane heat.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the reinforced composite direct-buried heat preservation pipe is provided.
The technical scheme is as follows: in order to achieve the above object, the utility model provides a compound direct-burried insulating tube of enhancement mode, including inner tube, outer tube, polyurethane heat preservation, oversheath and a plurality of linking bridge, be provided with first gear and second gear on the outer wall of inner tube and the inner wall of outer tube respectively, the polyurethane heat preservation is filled between inner tube and outer tube.
Furthermore, two ends of the connecting bracket are respectively fixed on the first gear and the second gear.
Furthermore, both sides of the connecting support are gradually concave downwards towards the middle, so that both ends of the connecting support can keep a larger contact area, the contact area between the polyurethane and the connecting support during filling is reduced under the condition of ensuring the connection strength, the flow obstruction of the connecting support to the polyurethane is reduced, and the filling efficiency of the polyurethane is improved.
Furthermore, both sides of the connecting bracket are of arc structures.
Furthermore, the gear modules of the first gear and the second gear are the same, so that the first gear and the second gear can basically keep symmetry, and the good attractiveness of the heat-insulating pipe structure is ensured.
The design principle of the utility model is that: through add first gear and second gear respectively on inner tube and outer tube for the two sides of the polyurethane heat preservation of last shaping can realize the block fit with first gear and second gear respectively, has not only increased the area of contact of polyurethane heat preservation, has improved the joint strength and the positional stability of polyurethane heat preservation moreover.
Has the advantages that: compared with the prior art, the utility model, the joint strength and the positional stability of polyurethane heat preservation obtain promoting, have solved the polyurethane heat preservation and have appeared not hard up, the problem of aversion easily in the heat preservation to guarantee the result of use of polyurethane heat preservation, prolonged the life of polyurethane heat preservation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
As shown in fig. 1, the utility model provides a compound buried heat preservation pipe of enhancement mode, including inner tube 1, outer tube 2, polyurethane heat preservation 4, oversheath 3 and a plurality of linking bridge 7, be provided with the same first gear 7 of gear modulus and second gear 5 on the outer wall of inner tube and the inner wall of outer tube respectively, polyurethane heat preservation 4 is filled between inner tube 1 and outer tube 2, and linking bridge 7's both sides are the inner arc structure, and linking bridge 7's both ends welded fastening is respectively on first gear 7 and second gear 5.
In this embodiment, the manufacturing process of the composite direct-buried thermal insulation pipe is as follows: firstly, the inner pipe 1 and the outer pipe 2 are connected through the connecting support 7, then high-temperature polyurethane is injected between the inner pipe 1 and the outer pipe 2, after the polyurethane is full of polyurethane, a polyurethane heat-insulating layer 4 is formed through a cooling process, and finally the outer sheath 3 is sleeved to form the composite direct-buried heat-insulating pipe.
Claims (5)
1. The utility model provides a compound buried heat preservation pipe of enhancement mode, includes inner tube, outer tube, polyurethane heat preservation, oversheath and a plurality of linking bridge, its characterized in that: the outer wall of the inner pipe and the inner wall of the outer pipe are respectively provided with a first gear and a second gear, and the polyurethane heat-insulating layer is filled between the inner pipe and the outer pipe.
2. The reinforced composite direct-burried thermal insulation pipe according to claim 1, characterized in that: and two ends of the connecting bracket are respectively fixed on the first gear and the second gear.
3. The reinforced composite direct-buried heat-insulating pipe as claimed in claim 1 or 2, wherein: both sides of the connecting bracket are gradually concave downwards towards the middle.
4. The reinforced composite direct-burried thermal insulation pipe according to claim 3, characterized in that: and two sides of the connecting bracket are both arc-shaped structures.
5. The reinforced composite direct-burried thermal insulation pipe according to claim 1, characterized in that: the gear module of the first gear is the same as that of the second gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476605.9U CN211951905U (en) | 2020-04-03 | 2020-04-03 | Compound direct-burried insulating tube of enhancement mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476605.9U CN211951905U (en) | 2020-04-03 | 2020-04-03 | Compound direct-burried insulating tube of enhancement mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211951905U true CN211951905U (en) | 2020-11-17 |
Family
ID=73167691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020476605.9U Active CN211951905U (en) | 2020-04-03 | 2020-04-03 | Compound direct-burried insulating tube of enhancement mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211951905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513638A (en) * | 2021-07-02 | 2021-10-19 | 浙江天诚绝热科技股份有限公司 | Polyurethane thermal insulation composite pipe and forming device thereof |
-
2020
- 2020-04-03 CN CN202020476605.9U patent/CN211951905U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513638A (en) * | 2021-07-02 | 2021-10-19 | 浙江天诚绝热科技股份有限公司 | Polyurethane thermal insulation composite pipe and forming device thereof |
| CN113513638B (en) * | 2021-07-02 | 2022-03-18 | 浙江天诚绝热科技股份有限公司 | Forming device of polyurethane heat-insulation composite pipe |
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